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Subject line missing when using Mail Merge

  • 1 reply
  • 1 has this problem
  • Last reply by Matt

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Since I upgraded to Thunderbird 78.3.2 (32-bit), any subject line I enter for a mail merge gets completely ignored and messages with blank subject lines are produced.

I have tried uninstalling the Mail Merge addon and then re-installing it, all to no avail.

Operating system is Widows 10. No other add-ons are installed but Enigmail was installed on the previous major release.

Any suggestions as to how to resolve this would be really appreciated.

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Duplicated here

Just to be clear mail merge is a paid extension and the author supplies support see the support link in the addons page


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